Token Drop Example

Introduction

In this guide, we will utilize the Token Drop contract to release ERC-20 tokens!

We also utilize the token drop's claim phases feature, to release the tokens for a price, and only allow a certain amount to be claimed per wallet.

Check out the Demo here: https://token-drop.thirdweb-example.com/

Tools:

• thirdweb Token Drop: thirdweb's Token Drop contract is a way of releasing your ERC20 tokens!

• thirdweb React SDK: To connect to our NFT Collection Smart contract via React hooks such as useTokenDrop, connect user's wallets, and other awesome hooks like useActiveClaimCondition and useClaimIneligibilityReasons.

• thirdweb TypeScript SDK: To claim/mint tokens from the token drop with .claim , view token balance with .balanceOf, and transfer tokens with .transfer.

Using This Repo

• Create a Token Drop contract via the thirdweb dashboard on the Polygon Mumbai (MATIC) test network.

• Create a project using this example by running:

npx thirdweb create --example token-drop

• Replace our demo token drop contract address (0xCFbB61aF7f8F39dc946086c378D8cd997C72e2F3) with your token drop contract address!

Guide

Configuring the ThirdwebProvider

The thirdweb provider is a wrapper around our whole application.

It allows us to access all of the React SDK's helpful hooks anywhere in our application.

// This is the chainId your dApp will work on.
const activeChainId = ChainId.Mumbai;

function MyApp({ Component, pageProps }) {
  return (
    <ThirdwebProvider desiredChainId={activeChainId}>
      <Component {...pageProps} />
    </ThirdwebProvider>
  );
}

Connecting User's Wallets

We use the useMetamask hook to connect with user's wallets.

const connectWithMetamask = useMetamask();

// ...
<button onClick={connectWithMetamask}>Connect with Metamask</button>;

Getting the token drop contract

We use the useTokenDrop hook to get the token drop contract:

const tokenDropContract = useTokenDrop(
  "0xCFbB61aF7f8F39dc946086c378D8cd997C72e2F3"
);

Claiming Tokens

In this example repository, we will use the .claim method to claim tokens.

Since we have a wallet connected, the function automatically detects our wallet address as the claimer by default.

We store a value the user types into an input field in state:

const [amountToClaim, setAmountToClaim] = useState("");

// ...

<input
  type="text"
  placeholder="Enter amount to claim"
  onChange={(e) => setAmountToClaim(e.target.value)}
/>;

And use this value to call claim on behalf of the connected wallet.

const claimResult = await tokenDropContract?.claim(amountToClaim);

Viewing Token Holders & Balances

We use the TypeScript SDK to view all the holders of our token and their balances, using the getAllHolderBalances method.

const sdk = new ThirdwebSDK("mumbai"); // configure this to your network

const token = sdk.getToken("0xCFbB61aF7f8F39dc946086c378D8cd997C72e2F3"); // our token drop contract address

const balances = await token.history.getAllHolderBalances();

We store the balances array in state, and map each balance to a div containing the holder's address and balance:

<div>
  {holders.map((holder) => (
    <div key={holder.holder}>
      <p>{holder.holder}</p>
      <p>
        {holder.balance.displayValue} {holder.balance.symbol}
      </p>
    </div>
  ))}
</div>

Transferring Tokens

Using the TypeScript SDK's .transfer method, we can transfer a set quantity of tokens to another address.

In this example, we have a text field to enter the address to transfer to, and a text field to enter the amount to transfer, which we store in state:

const [addressToTransferTo, setAddressToTransferTo] = useState("");
const [amountToTransfer, setAmountToTransfer] = useState("");

We then transfer the tokens using these values:

const transferResult = await tokenDropContract?.transfer(
  addressToTransferTo,
  amountToTransfer
);

Additionally, we can get the amount of tokens we now have after transferring:

const newBalance = await tokenDropContract?.balanceOf(address);

Join our Discord!

For any questions, suggestions, join our discord at https://discord.gg/cd thirdweb.